Underwater motive device



FIG. 1 is a perspective view of an underwater motive device showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof; and

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The portions of the article shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an underwater motive device, as shown and described. 